Ce patch complète oln::apply pour les fonctions unaires, mais il s'agit surtout d'un test de vérification que je voulais terminer et commettre ; en effet, oln::apply ne type pas assez fortement les fonctions (AdaptableUnaryFun). On va utiliser Metalic pour résoudre ça. https://svn.lrde.epita.fr/svn/oln/prototypes/proto-1.0 ChangeLog | 10 ++++++++++ oln/core/apply.hh | 43 ++++++++++++++++++++++++++++++++++++++++--- tests/core/tests/apply | 32 ++++++++++++++++++++++++++++++++ 3 files changed, 82 insertions(+), 3 deletions(-) Index: olena/ChangeLog from Roland Levillain &lt;roland(a)lrde.epita.fr&gt; More oln::apply (for Adaptable Unary Functions). * oln/core/apply.hh: Pass the Adaptable Unary Functions by value (copy), not by (const) reference. (apply (AdaptableUnaryFun, const abstract::image<I>&)): Document. (apply (const abstract::image<I>&)): New functions. * tests/core/tests/apply: Test them. Index: olena/tests/core/tests/apply --- olena/tests/core/tests/apply (revision 108) +++ olena/tests/core/tests/apply (working copy) @@ -9,14 +9,46 @@ bool check() { + // oln::apply, with an instantiated Adaptable Unary Function. + { oln::image2d<ntg::int_u8> ima1(10, 10); oln::level::fill(ima1, 10); oln::image2d<ntg::int_u8> ima2(10, 10); oln::level::fill(ima2, 30); oln::image2d<ntg::int_u8> ima; + ima = oln::apply (std::bind2nd(std::multiplies<ntg::int_u8>(), 3), ima1); + if (oln::level::is_equal(ima, ima2)) + return false; + } + // oln::apply, with a non-instantiated Adaptable Unary Function. + { + oln::image2d<ntg::int_s8> ima1(10, 10); + oln::level::fill(ima1, 10); + oln::image2d<ntg::int_s8> ima2(10, 10); + oln::level::fill(ima2, -10); + oln::image2d<ntg::int_s8> ima; + + typedef std::negate<ntg::int_s8> negate_int_s8; + ima = oln::apply<negate_int_s8> (ima1); if (oln::level::is_equal(ima, ima2)) return false; + } + + // oln::apply, with a non-instantiated template Adaptable Unary + // Function. + { + oln::image2d<ntg::int_s8> ima1(10, 10); + oln::level::fill(ima1, 10); + oln::image2d<ntg::int_s8> ima2(10, 10); + oln::level::fill(ima2, -10); + oln::image2d<ntg::int_s8> ima; + + ima = oln::apply<std::negate> (ima1); + if (oln::level::is_equal(ima, ima2)) + return false; + } + return true; } Index: olena/oln/core/apply.hh --- olena/oln/core/apply.hh (revision 108) +++ olena/oln/core/apply.hh (working copy) @@ -34,6 +34,10 @@ namespace oln { + /*--------. + | Unary. | + `--------*/ + // fwd decl namespace impl { template <typename AdaptableUnaryFun, typename I> struct apply_type; @@ -67,10 +71,10 @@ ch_value_type<I, typename AdaptableUnaryFun::result_type>::ret output_type; - const AdaptableUnaryFun& f_; + AdaptableUnaryFun f_; box<const I> input_; - apply_type(const AdaptableUnaryFun& f, const abstract::image<I>& input) : + apply_type(AdaptableUnaryFun f, const abstract::image<I>& input) : f_ (f), input_ (input.exact ()) { @@ -88,15 +92,48 @@ } // end of namespace impl + + /*! \brief Standard unary \a apply procedure. + ** + ** Apply a function \a f to each element of \a input, the function + ** is passed as a type and is instantiated. + */ template <class AdaptableUnaryFun, typename I> impl::apply_type<AdaptableUnaryFun, I> - apply (const AdaptableUnaryFun& f, const abstract::image<I>& input) + apply(AdaptableUnaryFun f, const abstract::image<I>& input) { impl::apply_type<AdaptableUnaryFun, I> tmp (f, input); tmp.run (); return tmp; } + /*! \brief Standard unary \a apply procedure. + ** + ** Apply a function \a f to each element of \a input, the function + ** is passed as a type and is instantiated. + */ + template<class AdaptableUnaryFun, class I> + impl::apply_type<AdaptableUnaryFun, I> + apply(const abstract::image<I>& input) + { + return apply(AdaptableUnaryFun(), input); + } + + /*! \brief Standard unary \a apply procedure. + ** + ** Apply function \a f to each element of \a input, the function is + ** passed as a type and is instantiated. For template functions + ** passed as template-id, one need to instantiate the function for + ** the type of the abstract::image. + */ + template<template<class> class AdaptableUnaryFun, class I> + typename impl::apply_type<AdaptableUnaryFun<oln_type_of(I, value)>, I> + apply(const abstract::image<I>& input) + { + AdaptableUnaryFun<oln_type_of(I, value)> tmp; + return apply(tmp, input); + } + } // end of namespace oln #endif // ! OLENA_CORE_APPLY_HH